Heel-trimming machine



(No Model.)

0. E. PHILLIPS. HEEL TRIMMING MAGHINE'.

No. 445,233. Patented Jan.27,1891.

STATES PATENT OFFICE.

CHARLES E. PHILLIPS, OF ROCHESTER, NEXV YORK, ASSIGNOR TO IIOMER ROGERS,TRUSTEE, OF BOSTON, MASSACHUSETTS.

HEEL-TRIMMING MACHINE.

SPECEFICATIO N forming part of Letters Patent No. 445,233, dated January27, 1891.

Application filed April 23, 1886. Serial No. 199,877. (No model.)

To aZZ whom it may concern;

Be it known that 1, CHARLES E. PHILLIPS, of Rochester, in the county ofMonroe and State of New York, have invented an Improved Machine forTrimming Heels, of which the following is a specification.

Figure 1 is a sectional plan View of so much of my machine as isnecessary to show my invention. Figs. 2, 8, and 4 are details ex- IOplained below.

My invention relates to the construction of the tread-guide described inPatent No. 308,056, dated November 18, 1884; and it consists in makingit adjustable to suit ditferent widths of cutters, and also to suitcutters varying in diameter.

The cutters for heel-trimming machines vary considerably in width, andin my improved machine the tread-guide is so com- 2c bined with thecutter by means of a screw or the like that the tread-guide can be movedto suit the width of the cutter.

In the drawings, A is the main shaft, upon which the cutter B is securedin the usual manner.

D is the tread-guide, (Z a nut, and d an exterior-ly-threaded sleeve ora screw which turns on a projection of the frame H and the protrudingbushing I of the bearing of the main shaft, and is kept in place by theflange 2 on the outer end of the protruding bushing. The tread-guide isstationary when the machine is in use, but is moved either toward oraway from the outer end of the main shaft by turning the screw (1 so asto admit the use of cutters of different widths. It is obvious that thetread-guide may be adjusted accurately to cutters which vary in width byturning the screw (1. I prefer to clamp the cutter by means of thethreads (1 on the main shaft, and the nut a, which is provided w thopenings to receive a spike or the like 1nserted through an opening f innut d, so that the nut a can be driven hard up against the cutter oraway from the cutter by turning the main shaft. The nut d is kept fromrotating by its arm 61 extending into a hole in the frame of themachine; In this way the cutter is firmly clamped on the main shaft.

To adapt the same tread-guide for use with cutters of differentdiameters I make the orifice d eccentric. The tread-guide is turned byloosening the set-screw f, when the short side of the groove is broughtflush with the cutting-edge of an adjacent blade of the cutter B. Thediameters of the cutters commonly used vary as the cutters are ground,and the adjustment enables the tread-guide to be set with great accuracyto suit the cutter as its diameter decreases.

I am aware of Corsons patent, No. 331,771, December 8, 1885; VanNowhyss, No. 168,540, October 5, 1875; Helmss, No. 234,869, November 30,1885; Huiskamps, No. 324,841, August 25, 1885, and Smiths, No. $11,065,May 4, 1886, and disclaim all that is described in them.

hat I claim as my invention is- 1. In a heel-trimming machine, thetreadguide D and cutter B, combined with a nut 61 and screw 61, the nut(I having an arm d to 7c keep the nut from turning, substantially as andfor the purpose set forth.

2. In a heel-trimming machine, the rotary tread-guide D, with itseccentric orifice (i in combination with cutter B, substantially as andfor the purpose specified.

3. In a hee1-trimming machine, cutter B, in combination with tread-guideD, a support therefor, means, substantially such as described,comprising nut 61 and screw d, for moving the tread-guide toward andawayfrom the end of the cutter, and means, substantially such asdescribed, comprising set-screw f, for clamping tread-guide D to itssupport, the tread-guide being movable along and around said support,all substantially as and for the purpose set forth.

CHARLES E. PHILLIPS.

Witnesses:

A. J. JOHNSON, M. D. PHILLIrs.

